Machine for operating upon shoe bottoms



E. E. WINKLEY MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed N s Sheets-Sheet 1' Oct. is,19z7,- I 1,645,566

E. E. WINKLEY MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Nov. 23, 1918 8 Sheets-Sheet '2 u. u. WINKLEY MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Nov. 2 14918 8 Sheets-Sheet 4 Get.

MACHINE FOR OPERATING UPON SHOE BOTTQMS Filed Nov. 25, 1918 4 8 Sheets-Sheet, 5

QQt. 19270 Filed Nov 1918 a Sheets-Sheet 6 M 8 W 6 A\ Q a 6 5 WW 70 ling/gm 539/" 1,645,566 7 E. E. WINKLEY MACHINE FOR OPERATING UPON SHOE BOTTOMS Filed Nov; 23, 1918 8 Sheets-Sheet 8 Patented Get. 18, 1927.

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ERASTUS E. W'INKLEY, OF LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERS'ON, NE'W JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR-OEERATING UPON SHOE BOTTOMS.

Application filed November 23, 1918.

This invention relates to machines for use in the manufacture of shoes and is illustrated herein as embodied in 'a heel seat fitting machine.

In the manufacture of shoes having wood heels it is customary to trim away the edge I of the heel seat portion of the sole so that the edge of the sole will be covered and concealed by the upper edge of theheel which, accordingly, bears directly on the shoe up per. hen trimming away the margin of the heel seat portion ofa sole it is usual and desirable to trim the sole to a shape corre sponding to that of the cavity of the attaching face of the wood heel which is to be attached, thus providing a firm foundation for the heel so that the heel can be securely attached to the shoe without danger of a crack opening up between the edge of the heel and the shoe'upper. It is usual also as a part of the heel seat fitting operation to form a pair of heel breast receiving shoulders at the heel breast line, these shoulders thus being positioned at the forward extremities of the trimmed-away portion.

It isan object of the present invention to provide an improved heel seat fitting machine of a character readily adaptable to fit the different sizes and styles of shoes so which it may be desired to operate upon.

lVith this object in view, a feature of the invention, as embodied in the illustrated machine, comprises a movable cutter operative to trim surplus stock from the heel seat pormeans, illustrated as a cam, to guide the cutter as it performs the trimming operation. Thus the path of the cutter can be varied in accordance with the size and shape to which the heel-seat of the sole is to be trimmed. In the illustrated machine adjustable means are provided both for varying the convexity (as viewed in crosssection) to which the heel seat is trimmed, and for varying the curve of theheel breast receiving shoulder relatively to a vertical axis forward of the heel breast line.

In the preferredform of the invention the controls for determining the path of the cutting means are effective to move said means in a three dimensional curve or space curve which is generally defined as a curve not lying in single plane, producing a heelbreast cut which curves in three dimensions tion of the sole of a shoe, and adjustable Serial No. 263,894.

and can thus be joined perfectly to a heel having a concaved breast.

A further feature of the invention com is formed and the adjacent portion of the periphery of the heel seat is beveled simultaneously, the operations being performed successively on the two sides of the heel seat while the shoe is firmly supported and clamped in place.

To aid insupporting the edges of the heel seat of the sole during the heel seat fitting operat on the illustrated machine, in accordance with another feature of the invention, 18 provided with a pair of jaws, one on each side of the shoe in the vicinity of the heel breast line, arranged to enter the rand or welt crease of the shoe to support the edges of the sole at the heel breast line during the heel seat fitting operation.

The machine herein disclosed is particularly adapted to operate upon shoes of the type having a short outsole and a heel the attaching face of which is provided with a cavity for the reception of the end of the short sole, this cavity extending only a fractzon of the distance from the breast of the heel to the rear, as disclosed in Letters Patent of the United States, No. 1,396,801, granted November 15, 1921 on an application filed by the present applicant. It should be understood, however, that this is primarily for purposes of illustration, and that in various of its aspects the invention is not limited in its utility to embodiment in machines for operating upon the soles of shoes of this type. On the contrary, various of its features are applicable also to machines for performing the heel seat fitting operation upon shoes having full length soles which are to have attached to them wood heels of any of the usual types.

Vith the above and other objects and fea tures in view, the invention will now be described in connection with the accompanying drawings and pointed out in the claims.

Figure 1 is a view in sideelc 'ation of the machine; F 2 is a view in front elevation thereof; Fig. 3 is a top plan view thereof; Fig. t is a sectional view taken substantially on the line 4-4 of Fig. 1; Fig. 5 is a fragmentary view of the machine in front elevation, showin a portion of the movable knife support with the knives in the position they occupy at the end of one of the cutting opera'tions and illustrating also the effect of the cutting operationon the outsole; Fig. 6 is a view partly in section on the line 66 of Fig. 1. showing the movable parts inclicated in Fig. 5 in the positions they occupy before the shoe is placed in position and the machine started; Fig. 7 a view partly in se ctionon the line 77 of Fig. 1; Fig. 8 is a view similar to Fig. 7, showing a different.

adjustment of the'fiexible guiding device or cam for controlling the movement of the knlv Fig. 9 1s an enlarged detail view of the flexible cam; Fig. 10 is a view partly in section outhe' line 10 -10 of Fig. 1 ;'Fig. 11 isa sectional view taken on the line 1111 of Fig. 3; Fig. fl2is a top plan view of certain of the parts shown'in'Fig. 11; and Fig.

13 is a perspective view of the oscillatory head that supports the sole scari'ing cutter,

the support for the shoe bottom to be 0peraited upon beingomitted to clearly illustrate the cutter.

A concrete example of the nature of the heel scat fitting operation that is the result of using this machine of'thc present invention; is disclosed'in said lVinkley Patent No. 1.396.801 dated November 15; 1921.;and for the sake of simplicityand' clarity thefitting of a short outsol'eof that type will now be described but those skilled in the art \v'll recognize that the features of'tlie illustrated machine may be variously modified within the skill of the" artisan to adapt the invefition to a similar fitting of other kinds of outsoles.

In the preferred embodin'ient of the invention illustrated in the drawings, the machine comprises in general, a frame, upon which the various parts of the operating mechanism are mounted; consisting of a rectangular body portion 14F and asupporting frame or standard 16; an adjustable back gage18 (Fig. 1) against which the'heel of theshoe'is placed to determine the longitudinal position of the shoe with respect tothe knives: aplura 'ty of pivotally mounted or laterally swing ng arms 20 (l ig. 2) which are gearedtog'cther and providedrwith gripping: (Fig. 6) whichcooperate,when the arms are swungtoward each other, to support and positio he shoe laterally with r 'DGCt to the knives; outs-ole supporting a ers '24 (Figs: 2. and (5)mounted. one

on each of the swinging arms, for entering.

the welt crease at opposite sides of the shoe and providing a rigid support for the lateral edges of the tongue at the shank end of the outsole while it is being operated upon by the knives; a mechanism for swinging in the pix-otallymounted arms 20 so that the gripping jaws 22 will. position andsupport the shoe, and the outsole supportingfingers will. support the opposite lateral edges of the tongue'of the out-sole, said mechanism including a treadle- 26, whereby the opera tion of the machine is controlled; a locking device, including a lever'QS (Fig. 1') connected with the treadle for locking the swinging arms 20 in operative position; a pair ofheel-seat fitting knives and 32 (Figs; 6 and 13) for scarfing or beveling the tongue of the 'outsole; the knives being located at the front of'the body portion of the f ame and mounted in such a manner that they may be brought alternately into position to operate upon opposite sides of the outer face of the tongue; an oscillatory head which is mounted in said body portion of the frame and carries the heel. seat fitting knives 30 and 32 and which is oscillated about adjustable pivot blocks 86 (Figs. 4 andll.) to cause the kn'ives to eonvexly scarf or bevel theouter face of the tongue; a mechanism, including a crank 38 (Figs. rand 11.) for oscillating the head alter nately toward opposite sides ofthe machine; a flexible guiding device or cam 40 l. 7, S; 9;aud'13) having the dual function of suppm ti'ng' the h rad 34, which is free to niiove'radially with'respect to thepivot blocks I 36; and of modifying the oscillatoryniovement'of the head so that the knives will produee'the required convex curvature of the outer face of the tongue; a gaging device consisting of. a curv ed' strap cam 49 (Figs. 11. and 12) for varying the position of the knives angularly and longitudinally with respect to thesole, during the performaue of their cuttingoperations, so as to produce curimd shouldersadjacent to the scarited or beveled portion of. the tongue. which are shaped to iitthe curve of the breast of the heel; a mechanism includingshift inverse-4 and-46 (Figs. 2. 5 andiG) whereby the knives are shifted during each cycle of the machine so as to bring the knives successively into operative position; a one revolution clutch 4-8 (Fig. 10). for connecting and disconnecting the machine to and. from the source of power; andnieans under control. of the operator for operating the clutch-.'

Power is continuously supplied from a suitable mama a drivepulley 50' 1 and which is looselyniounted on the rear end-of a main shaft 52 that is suitably iournaled in the supporting. standard 16. The main shaft is normally idle and may he conneetedfto the continuously driven pulley 50 by= n1eans of theelutch 48. Thelvari ous operating mechanisms of the machine are connected to'a cam shaft 54 which is driven from the main shaft 52 through gearing 56 (dotted lines Fig. 1), a c0untershaft 58 and gearing 60.

The shoe to be operated upon is placed with its heel end against the back gage 18 and with the shank portion. of the outsole bearing upwardly against that one of the two knives 30, 82, which is in operative position. The location of the back gage determines the longitudinal position of the shoe relatively to saidknife and the gage is adjusted according to the size of the shoe to be operated upon so as to bring the tongue of the outsole into thepath of both of the knives.

The back gage consists of the long, irregularly shaped arm 18 which is secured to one end of a short shaft 62 (Fig. 1) mounted in a fixed bearing 64. The upper end of the back gage is supported against lateral displacement by the sides of a groove 66' (Fig. 7 and 8) formed in the under side of a bracket 68 that is fixed t0 the frame. The back gage is adjusted forwardly and rearwardly in the groove (36 by means of a han die 70 (Fig. 1) that is pivotally connected at 72 to an arm 74 secured to the opposite end of the shaft 62. The movement of the handie is controlled by a segment 7 6 having an arcuate slot 7 8 therein which receives a pin projecting laterally from the handle. The slot, being eccentric to the pivot 72, movement of the hanlde results in rocking of the shaft 62 and in the longitudinal adjustment of the back The outer face of the segment 7 6 is provided with teeth adapted to be engaged by a suitable detent (not shown) on the handle so as tohold the handle and the back gage in adjusted position.

During the cutting operation the shoe is supported at the back between the gripping jaws 22 carried by the free ends of the swinging arms 20, the jaws being provided with gripping surfaces, formed of resilient material, which conform somewhat to the contour of the lasted shoe when pressed against the sides thereof. On each swinging arm 20 adjacent its gripping jaw 22 is one of the outsole supporting fingers 24 so shaped that the extremity thereof will enter the welt crease of the shoe between the edge of the tongue on the outsole and the upper. The fingers 24 are pivoted at 82 (Fig. 6) to a plate 84 that is adjustably secured to the frontof the swinging arm 20 by means of a screw 86 whichprojects through a slot 88 'in the plate and into the arm 20. In order that the fingers 24 may be accurately adjusted longitudinally of the arms 20 so to insure they will enter the welt creases 0 different styles of shoes, each plate 84 i provided with a suitable adjusting screw 90 (Fig. 2). The screw 90 is-free to turn in a lug 92 on the arm 20, but is prevented from moving longitudinallytherethrough, and is received in a threaded aperture 94 in the plate 84. The fingers 24 are yieldingly pressed toward each other by springs 96 the ends of which are confined in sockets, one in the finger and one in the plate 84.

The swinging arms 20 are secured to shafts 98 (Fig. 2) to which are also secured intermeshing gears 100. The shafts 98 are mounted in bearings 102 formed on a casing 104 which encloses the gears and is bolted to the frame. The means for swinging the arms into and out of operative position comprises an arm 106 that is tired to the shaft 98 on the right hand side of the machine (Fig. 2) and connected by a universal joint 108 with a rod 110. Yielding operative connections are provided between the rod 110 and the treadle 26 comprising a spring 112 and an arm 114, the latter pivoted at 116 to the treadle, the rod passing freely through an aperture in 9. lug 118 formed at the upper end of the arm and the spring surrounding the rod and being interposed between a collar 120 at the lower end thereof and the lug 118. By means of this construct-ion the treadle, which is depressed to cause the shoe to be gripped by the jaws 22 on the swinging arms 20, may thereafter be further depressed to operate the clutch and start the machine.

After the shoe has been placed with its heel end against the back and the outsole in contact with the knife which is central (see Fig. 2), the operator depresses the treadle 26 and the arms 20 a "e swung inwardly so that the gripping jaws 22 engage the shoe, one on either side thereof, positioning the shoe late-rally with respect to the knife and supporting it in position to be operated upon. As the swinging arms move inwardly toward the shoe, the ends of the outsole sup-porting fingers 24 enter the weltcrease between the tongue extending from the shank end of theoutsole and the portion of the upper which has been lasted over the insole, as shown in Figs. 5 and 11, supporting the corners formed by the junction of the tongue and shank portion of the sole. The springs 96 permit the fingers to yield laterally so as to adjust themselves readily to the shoe but when the fingers are in position with their ends beneath the end of the outsole they provide a rigid supporttherefor, resisting unyieldingly the downward pressure of the skiving knives and per mitting them to scarf the tongue down to a uniformly thin edge at the said corners.

When the swinging arms 20 have been moved into their operative position, they are locked therein so that a subsequent release of the treadle will not'permit the rel-ease of the shoe until the cycle of operations has been completed. The locking means comprises a cam 122 (Fig. 1) on the cam shaft 54 havframe.

ing its cam surface at the rear end face thereof and which cooperates with the lock ing lever 28 that is fulcrumed on a stud 12st and connected at 126 with a rod 128 which is pivoted to an arm 130 on a rock shaft 132 to which the treadle is also fixed, and which is mounted in suitable hearings in the A cam notch 134C in the face of the cam 12?, is normally occupied, when the machine is idle, by the free extremity of the locking lever 28, thus pern'iitting a spring 136 to raise the treadle 26 into its normal inoperative position. lVhen, however, the treadle is depressed su'lliciently to cause the shoe to he gripped by the gripping aws 22, the locking lever 28 will be swung out of the notch ;in the cam.

11,1 l' urincr depres sion of the treadle will cause rotation of the cam shaft, as will be hereinafter de scribed, and as the cam turns, the notch 13 1 will be carried out of registry with the locking lever, as shown. in Fig. 1. If the treadle is released before the completion of the cycle the free extremity of the locking lever will be prevented from returning to its normal position by the face of the cam and. the swinging arms 20' will thus be locked in their gripping positions against the shoe. At the completion of the cycle, the cam shaft will have made one complete revolution and brought the notch 13 1 again in reg-- istry with the end of the locking lever. The end of the locking lever will then be free to enter the notch and the tenr on of the spring 136 will raise the treaidle and release the shoe.

The cutting or scarting uieraliou is performed by the two knives 30 and 32 (Fig.. 6 and 13), each of which is provided with two cutting edges 1 10 and 1 12 that are angularly dis iiosed the one to the other. as shown best in F' 13. he vertical cutting edges 1 10 of theknivea are adapted toproduce the shoulder formed to engage and closely lit the breast of the heel and the horizontally disposed cutting edges 14-2 extend substantially the length of the tongue and function to skive or scarf the respecti e sides thereof insuch manner as to provice a substruitially convex heel seat at the outer or bottom face of the tongue to'conform to the contour of the base of the recess in the heel,

lVhen the shoe is gripped in position as already explained, the knives 30and are given a swinging movement transversely across the tongue ofthe outsole through the agency of the head 34- (Figs. 4t, 11 and 13) which carries them. The knives are moved alternately toward opposite sides of the machine by' means of the'cranh 38 (Figs, lland 13)which is oscillated through intermediate mechanism by a camlei-ton the cam shaft 5 1, as will hereinafter appear, and they opcrate successively, one to cut or scarf one swings in that direction, and the other to scarf the opposite side of the tongue during the swinging of the head in the opposite direction toward the corresponding side of the machine.

In order that each knife may he brought into position to perform its cutting or ing operation upon the proper side of the ton ue prior to the swinging of the head toward that side of the machine, both knives are mounted on a single knife-block 146 which is pivotally mounted on a horizontal stud 14-8 extending from a lug 150 (For. 11) which depends from a post 152. The

knife block 1 16 is adapted to be shifted to move the knives from one operative position to another by mechanism hereinafter ClGf-CllljQd and is provided with two shoulders 15 i (Fig. 6) which are adapted to co-operate with stops or shoulders 156 on the post 152 for the purpose of limiting the extent of movement of the knife block, while a spring pres-ed detent 158 is provided in an orifice at the base of the post the engagement of the detent with one of two positioning notches 160 in the upper surface of the knife block serving to hold the knives in their operative positions.

The knives are mounted on the knife block 146 with their unsharpened longitudinal edges toward each other, as shown in Fig. 6, each knife being adjustably secured thereto by means of a screw 162, which extends through a slot 164 in one of the angularly disposed portions of the knife, and into the knife block. The hub portion of the quite block through which the stud 14:8 extents has a sen'ii cylindrical surface 166 (Fig. 11) which bears against the wall of a cylindrical recess in the bottom of the post 152 which serves to relieve the strain on the lug 150 during the cutting operation.

The swinging movements of the knives 30 and 32 are transmittedthereto from the head 34 through a knife supporting arm 168 (Figs, 1, 2, 11 and 13) which is carried by the head and provided with a hearing 170 at its forward end. in which is journaled the post 152, the post being supported in the said hearing by a collar 17? which pinned to the post and engages the upper end of the bearing 170. i A

The oscillatory iead l is constructed of two plates 174 andlTG (Figs. '1', 8, 11 and 153i that are rigidly connected by a cross-bar 178, the plates being'guided topermit the headto swing laterally in a vertical plane between two struts. 180 (Figs 4., 7 and-l1) e ending transversely acrossthehody portion 1 lof" the frame, the inner sides of the struts forms inc; bearing surfaces which co-operate with ti 1 outer surfaces ofthe plates 174Qand 176 as the head is oscillated and prevent 10mirudinal or angular displacement of the head.

side ofthe tongue of 'theoutsole, as the head i Thehead is supported" by the flexible cam *40 Wl1l0l1 is mounted upon the bracket 68 faces of the plates 174 and and upon which rests a cam roll 182 carried by the plate 174 of the head 34.

The knife supporting arm 168 (Figs. 1, 2, 11, and 13) is fixed on one end of a hollow shaft 184 which is mounted with provision for longitudinal movement in bearings 186 at the topof the cross-bar 178 of the head 34 and is urged forward by a spring 188 that is confined within the hollow shaft 184 between the solid front end thereof and a thimble 190 which is adjustably held in the rear bearing 186 by means of bolts 192. The hollow shaft 184 is prevented from turning in its bearings as the knives are swung from side to side of the machine with the head 34 by means of a collar 194 that is fixed on the shaft between its bearings 186 and has a flattened under surface which cooperates with a machined bearing surface 196 on the top of the cross bar 178.

The longitudinal movements of the knife supporting arm 168 develop a certain amount of end thrust and, in order to prevent the thrust from causing the head 34 to bind or be cramped in its bearings, adjacent to the outer 176 an additional bearing is provided for the head. This bearing consists of an arched frame 198 which is constructed of two members that projectupwardly from the frame 14 and are bolted together and so formed as to provide a groove 200 at the inner periphery of the arched frame to receive a tongue 202 (Figs. 11 and 13) projecting upwardly from the forward plate 174 of the head. -215 the head 34 swings laterally of the machine the tongue 202 moves freely in the groove 200 and the end thrust of the head is taken up by the arched frame member on opposite sides of the groove.

In order to provide for the oscillation of the head 34, each of the plates 174 and 176 is formed with inward projections 204 (Figs. 4 and 11) between which is a slot 206 er;- tending vertically through the center of the plate. In each slot 206 is guided one of the two pivot blocks 36, and the said blocks are pivotally connected at 208 between the inner ends of a yoke frame210 (Figs. 4 and 13) by means of which they are adjusted in the slots. The opposite end of the yoke frame 210 is pivoted to a link 212 which is, in turn, pivoted at 214 between ears rising from the frame. A curved link 216 is pivoted to the frame of'the machine at 218 and to the yoke frame at 220 and the proportion and arrangement of the links 212 and 216 and the yoke frame 210 is such that by virtue of the movement thereof the pivot blocks 36 are constrained to moveonly in a vertical path. The end of theyoke frame which carries the pivot blocks is connected through a universal joint with a link 222 pivotallyconnected with a lever 224 (Fig. 1), this lever being fulcrumed on the stud 124 on which locking lever 28 is mounted and is provided with an operating handle 226. The handle 226 is operated to shift the position of the pivot blocks 36 in the slots 206 and is provided with suitable locking means 228 cooperating with a stationary segment 230 whereby the lever 224 andthe pivot blocks 36 are locked in their adjusted positions.

' The head 34 is oscillated by means of the crank 38, (Figs. 4, 11 and 13) which is arranged at the rear of the plate 17 6 of the head and has a c 'ank pin 232 connected with a slide block 234 that is mounted in the slot 206 in the plate 176. The crank 38 is fixed to a crank shaft 236 that is mounted in beau ings 238 on the frame. 14. The teeth of a pinion 240 which is also fixed to the crank shaft, are in mesh with the teeth of a rack bar 242 which is pivotally connected at its lower end to a. cam lever 244, the lever being pivoted at 246 to the frame and provided with a cam roll 248 that is operated by the grooved cam 144 on the cam shaft 54. The teeth of the rack bar are held in mesh with the teeth of the pinion by means of a flanged roll 250 that is supported from the frame and arranged to bear against the side of the rack bar farthest from the pinion. The can: 144 is designed so that during each cycle of the machine'the head 34 will be swung about the pivot blocks 36 first toward one side of the machine and then toward the opposite side thereof. As the head 34 and the knife block 146 which is carried thereby are swung to each side of the central position the knives operate successively, so that one of the lateral portions of the tongue is beveled and then the opposite lateral portion thereof similarly treated.

The desired convex curvature of the outer or bottom face of the tongue is produced by modifying the oscillatory movement of the head 34 by means of the supporting and guiding device or the cam 40. This cam consists of a flat stiff spring which is flexed to give it the required contour by means of fingers 254 (Figs. 7, 8, and13), which are adjustably mountedon theframe 14 at each side of the cam supporting bracket 68 and engage opposite ends ofthe cam. The contour of the cam 40 is such as to effect a slight shifting of the head relatively to the pivot blocks 36 as the cam roll 182 rides over the cam during the oscillation of the head. The knives 30 and 32 are thus caused to travel through a path determined by the contour of the cam and the tongue is skived or lOl) lll)

scarfed so that'the curvature of its outer face corresponds to that of the base of the recess inthe heel. The cam 40 is preferably constructed in such a manner that when flexed by the fingers 254 it will have a contour slightly more rounding near its ends than at its central portion. This may be n w o l i tC011113llSl1tl by making the central part of the cam thicker and consequently stiffer than the ends, as shown in Fig. 9.

The following provision is made for varying the curvature of the outer face of the tongue, produced by the skiving knives, as required in different styles of shoes. The lingers 254-, by 'n'ieans of which the cam 10 flexed, are carriedby blocks 256 fixed at'the top of vertical posts 258 (Figs. 7 and 8) which project through and are guided by ears 260 projecting inwardly from the frame 14:. livotally connected. to the finger blocks 256 are the niiei'nbers 262 carriedby vertical connecting rods 26 1 whicn are, in turn, connected to arms 266 (Fig; 1) on a rock shaft Fixed to the rock shaft between the arms 266 isan arm 27.0 bearing a cam roll 272 which is engaged by a cam face 274; (dotted lines Fig. 1) that is formed on the under side of the lever 22 1 by which the pivot blocks 36 adjusted. By means of the handle 226 of the lever 224 the cam 40 is flexed and the pivot blocl'ts 313 are adjusted at the 'sametime. The cam face 27-1 is designed to give the required amoimt of flexure to the cam 10.

In order to have the vertical shoulder which. formed at the base of the tongue curved to accommodate itself to the curve of the breast of'the heel, a gaging or guid ing device consisting of the curved strap cam 1-2 (Figs. 5 and 12) is provided, which is removahly secured by bolts 2'76 to the front of the body portion of the frame 14:. This strap cam 42 is engaged by cam rolls 278 carried by a yoke frame 280, the sides of which are in the form of bell crank levers pivotedat 282 (Fig. 1) on opposite sides of the post 152, the foiwvardly extending arms of the levers being united by the transverse central portion of the frame (see F The cam rolls 278 are mounted at the lower ends of the two downwardly erz tending arms of the yokefraine 280 and a set screw 28-1 which is provided at the trans verse central portion of the frame is adapted to engage a lug 286 on the post 152. The expansion spring 188 (Fig. 11) within the hollow shaft 184 forces the knife supporting arm together with the post 152 and the knife block 1 16 forwardly, thus holding the cam rolls 27am contact with the curved strap cam 42 and the set screw 284m contact with the lug 286. The cam 12 curves forwardly, corresponding to the curve of the breast of the heel, and as the knives swing to one side with the head they are moved. forwardly by the force ofthe spring 188 f. r as the post 152 is )ermitted to move by the cain 42] At the same time the knives are turned as the post 152 turns in its be ing 170 by reason of the rolls 2. 8 assuming different positions relatively to the face of said cam 12, and as the head swings back again the knives are returned to their norit IS desired to vary the,

can be made by shifting the back gage if.

In o der to shift the knives 30 and 32 so as to bri their opposite cutting edges alterin ely into operative positions, the shift arm: 19S and 290 (Fig. (3) are provided, er.- tend outwardiy from opposite sides of the krife block and perpendicularly to the pivot smell-l8, and adapted to be engaged by the shift levers t1 and 4-6 respectively. The shift levers are severally provided with "W for engaging the shift arms and ilcriuned upon studs 29.4 fixed in ears nae rising from the frame. The shift levers are normally held in inoperative position with the rolls elevated by means of tension springs which pull downwardly on extensions 300 of the levers. The levers are pivot-ally connected at points between the fulcrums 29 1 and the rolls 292 with vertical rots 302 Fig. 2) which are pivoted at their lower ends to arms 304 on rock shafts 306 suitably journaled in the supporting frame To the opposite ends ofthe rock shafts in. are secured upwardly extending curved arms 308 (Figs. 1 and 7) carrying cam rolls 310. One of the cam rolls is adapted to be engaged by a cam 312 (Figs. 1,7 and S) on the cam shaft while the other is adapted to be engaged by a cam 314: on the cam shaft. The cams 312 and 31a operate independently to shift the knife block 1 16 while the swin ing head 3 1; in neutral position, the c 31 acting to depress the shift lever and through the shift arm 290 shift the knife block so that the knife 32 is brought into position to operate as the swinging head more? to the rign as shown in Fig. 6, while the cam actsuftcr the head has returned to neutral )OSitlOIl to degn'css the shift lever 14: and through the shift arm 2% shift the knife block so that the knife 30 is brougnt into operative position as the head swings toward the left.

The clutch 48 (Fig. 10) by means of which the cam shaft'is given one complete revolution for each cycle of the machine comprises a driven member consisting of a laterally projecting flange 316 on the pulley 50 and a driving member consisting of a split ring 318 which is supported at one end by a hub 320 that is keyed to the main shaft, the split ring boil 3; arranged to engage the interior surface of t.e flange 316. The ends of the ring are connected by a. toggle comprising pivotally connected links 322 and 32-4, the toggle being (ill operated to engage the ring 318 with the flange 316 and to disengage the ring therefrom at the proper times. The link 324 of the toggle has an extension 326which is engaged by a spring 328 that is confined between said extension and a projection 330 on the hub 320. The action of the spring tends to straighten the toggle and engage the ring 318 with the flange 316 but is prevented from doing so by ,a clutch releasing arm 332, that is pivotally mounted on a stud334 on the frame of the machine. The arm is held in position to compressthe spring 328 by a stronger spring 336 that is connected between, a stud 338 on the frame 16 and a pin 340 at one end of a bell crank lever 342, the spring acting through said bell crank lever and through a link 344 to force the clutch releasing arm 332 downwardly against a cam roll 346 on the extension 326 of the link 324.

The engagement of the clutch members is controlled by the treadle 26 which is fixed on the rockshaft 132 (Fig. 1) and has a rearwardly extending arm 27. that is adapted to engage the lower end of a rod 348 which is vertically movable in bearings 350 on the frame. lVhen the treadle is depressed, the rod 348 is adapted to be lifted by the arm 27 against the action of a spring 352, surrounding the rod near its lower end and being interposed between a collar 354, that is fixed to the rod, and the low-er bearing 350. llpon the release of the treadle the downward movement of the rod is insured by means of the spring 352 and the extent of the movement is limited by a stop collar 356. An arm 358 *ig. 10) is pivoted at 360 to the upper end of the rod 348 and normally engages a depending lug 362 on a lever 364 which is fulcrumed on a stud 366 on the frame, the arm 358 serving to swingthe lever 364 upwardly when the rod 348 is lifted. The lever 364 is connected by means of a rod 368 with the bell crank lever 342.

In order to start. the machine after the shoe has been placed in position against the back rest 18, the operator depresses the treadle. The first part of the downward movement of the treadle causes the pivoted arms to be swung into position to support the shoe. After this has occurred further depression of the treadle brings the arm 27 into contact with the bottom of the rod 348, and lifts the rod together with the pivoted arm swinging upwardly the lever 364and also swinging the clutch releasing arm 332 upwardly through the connections comprising the link 344, the bell crank lever 342 and the rod 368.

The upward movement of the clutch releasing arm 332 permits the spring 328 to straighten the toggle consisting of the links 322 and 324 sufficiently to force the members of the driving clutch into engagement,

372 immediately after the machine starts.

The clutch releasing arm 332 is also held in raised position through the connections between said arm and the lever 364. Subsequent release of the treadle, therefore, will not effect the disengagement of the clutch members and premature stopping of the machine.

In order to interrupt the operation of the machine at the end of each cycle the cam 3T0 is designed so that it will permit the return of the lever 364 to its normal position and the coincident movement of the clutch releasing arm 332 into position to effect the disengagement of the clutch members in time to cause the stopping of the machine after the cam shaft has completed one revolution. The dis-engagement of the clutch members is effected by a cam face 374 on the clutch releasing arm 332which is in the path of the cam roll 346 on the extension of the toggle link 324 when the clutch releasing arm is in its normal position. -As the rotation of the main shaft 52 carries the roll 346 over the cam face 374 the toggle links are swung inwardly, the spring 328 being compressed by the force of the stronger spring 336.

In order to insure the stopping of the machine after a single revolution of the cam shaft, in case the operator continues to hold the treadle depressed, means is provided for swinging the arm 358 out of engagement with the lug. 362 on the lever 364. This means comprises a cam 376 which is secured to the cam shaft 54 and is provided with a depression which is normally occupied by a cam roll 378 on the arm 358. After the arm 358 has been raised sufficiently to lift the lever 364 and start the cycle of operations, the rise in the cam 376 acts on the roll 378 to swing the arm 358 about its pivot, against the action of a spring 380 so that the top of the arm will clear the lug 362 on the lever 364, leaving the latter free to assume its normal position when permitted to do so by the cam 370.

After the treadle 26 has been released and the machine has been brought to rest at the end of a cycle of operations the various parts of the machine have been returned to their initial positions. he machine is then in readiness to act upon another shoe and to repeat the cycle of operations hereinhei ore set forth.

\Vhile it is preferred to emh'ody the in vention in a machine having the specific eonstruction and arrangement of parts herein shown and described, it will he understood that such construction and arrangen'ient are not essential except so ii'ar specified in the clain'is and may be modified without departing from the spirit and scope oi the in ventiou.

That which 's claimed as new is I* l. A. machine for operating upon a. lasted shoe provided with an outsole having, in combination, means for sup iiorting and damping; the shoe, anti means for trimming the rear of the outsole successively on oppo site sides to provide a convex heel seat to lit a concave recess in a heel which is to he attached to the shoe.

2. A machine for operating; upon a shoe provided with an outsole having, in comhination, means for completely supporting the shoe, means for trin'iming; the rear of the outsole successively on opposite sides to provide a heel-seat to tit a reces in a heel which is to be attached to the shoe, and means for forming a shoulder adjacent to said heel-seat to it the breast oi? the heel.

3. A i-achine for oaerating upon a shoe providedwvith an outsole having. in combination, means for supporting the shoe, means for scar-.inga portion of tie hottoni face the rear of said sole to provide a substantially convex seat for a heel which is to be attached to the shoe, and means for controlling the operation of said scarfing means to vary the convexity of the heel seat.

l. A machine for operating upon a shoe provided with an outsole having, in combinatioi'i, a single means for supporting the shoe, means for trimming; alportion of the bottom iace at the rear 0'? said sole operatin o; succ ssively on opposite si. .es of the sole to provide a seat for a heel which is to he attached to the shoe, and m ans for tori'niiig a shoulder adjacent to said trimmed pow tionto lit the breast ot the heel, said trim niing and forming means being; arianged to operate on a shoe supported on said. single supporting means.

machine for operating upona shoe pro" ed with an outsole having, in combi nation, means for supporting; the shoe. and i 1,. i: 3 1 an angular bladed iinilie ior simultaneously scar-ling; the rear of said sole and cutting a shoulder adjacent Lo said scarled portion.

(3. A machine for o ieratiirg .upon a shoe pro ided with an outsole having, in combiiiation, means for supporting the shoe in fi ed position, and means operatin succesto hevel the opposite lateral edges at said sole while in that position res r of tile aiu. siimiltaneously with each hevehng operlasted emmas ation to cut a shoulder adjacent to said her-- eled edgel T. A machine for operating upon a shoe provided with a short outsole having, in con'ihiuation, means for supporting the out sole, and means for scariiug the bottom 'i ace oi the outsole in fixed position adjacent to the opposite lateral. edges of its shank end to provide heel-engaging surfaces tapering; outwardly in directions transverse to the length of the outsole and forwardly from the rear extremity thereof.

A machine for operating upon a shoe provided. with an outsele having, in .comhi nation, means for supportino the shoe, a pair of skiving knives for successively skivingopposite sides of the bottom face of said sole the rear thereot, means for actuating said hi ives, and means for shifting one of said-knives into o jierz-itive position and the other of said knives out of operative posi lion heloreii e-u-h shiving op ation.

8).. A mach for operating upon a shoe provided \Vi'rll a short outsole which has a tongue the shank end thereof having, in con'ihinaticai, men. s for supporting the shoe, separate supporting n'ieans for the portion (it the sole adjacent to the corners formed at the opposite lateral edge; thereof by the junction of the tongue and the shank end of the sole, and means "for hevelingthe bottom tare of the tongue toward said corners.

l0. Aural-hire for operating upon a shoe provided with a short outsole which has a ton; n at the shard; end thereof having, in combination, a movahle skiving knife, a pair of suj' 'iorting jaws arranged to engage opposite sides of the shoe, andseparate means on each oi? said jaws for entering the welt-c1. use of the shoe and holdingsaid tongue in the path of said knife.

11.. A machine tor-operating upon a shoe provided with a short outsole which has a ton ue at the shank end thereo'l' having, in

mnnoination, a u'iovalole skiving knife, a pair of supporting jaws arranged to engage op 'iosite sides of the shoe, a supporting tinger on each of said jaws for entering the welt crea e of the shoe and holding. said tongue in the path 01" said knife, and means for adjusting the position of said fingers relatively to said jaws.

12. A machine :lor operating upon a shoe provided with a short outsole which has a tongue at the shank end thereof having, in combination, i'nova'hle skiving knives for rel'llOVlllQ stock from said tongue, a pair of supportii'ig fingers arranged to enter the welt crea es of the shoe and conjointly to support the projicting margins of the sole at the shank end thereof at one side of the path oi said knives so that the knives will bevel the tongue to produce thin edges adjacent the shank portion.

13, A machine for operating upon a shoe provided with an outsole having, in combination, means for supporting a shoe, an oscillatory knife for operating upon said sole, and means for oscillating said knife transversely with respect to the sole to cut away a portion of the bottom face of the soleat V the rear of said sole to form a new surface to the shoe, said shaping means comprising a knife having two thin blades with their cutting edges angularly disposed toward each other, one of said edges adapted to cut away the bottom face at the rear of said sole and the other of said edges to form a shoulder adjacent to said cutaway portion.

16. A machine for'preparing a'shoe provided with an outsole to'receive a heel hav- 7 ing, in combination, a knife having angularly disposed cutting edges, means for giviing said knife a movement of translation transversely across the sole from its inner portion toward its periphery to cause one of said cutting edges to bevel a portion of the bottom face of the sole, while the other of said edges forms a rearwardly facing should-er adjacent to said beveled portion.

17. A machine for operating upon a shoe provided with an outsole having, in combination, meansffor supporting a shoe, a knife having, angularly disposed cutting edges. means for moving said knife transversely across the sole to cause one of said cutting edges to bevel a portion of the bottom face of the sole, and means for varying the position of said cutting edges longitudinally andangularly with respect to the sole during said-transverse cuttingstrokeso that the other of said cutting edges will form a curved shoulder adjacent said beveled por tion.

18. Amaohine for operating upon ashoe ,providedwith an outsole havmg, in combination, meansflfor supporting the shoe, a

movable head, a knife-carried by said head and having angularly disposed cutting edges,

means for moving-said head to cause one ofsaid cutting edges'to scarf the rear por- "tion of the bottom .face of the sole, and

means "for causing relative oscillatory and longitudinal movement of said knife during said movement of the-head to causethe other of said cutting edges to form a curved shoulder adjacent said soarfed portion of the sole.

19. 'A machine for operating upon a shoe provided with an outsole having, in combination, means for supporting theshoe, a movable knife, means for moving said knife transversely of the shoe to cut away the head and for oscillatory movement about an axis in a substantially vertical plane, means 7 for imparting lateral swinging movementto said head to oscillate said knife about an axis in a substantially horizontal plane, and means for controlling the oscillatory movements of said knife in both planes as the head swings laterally.

21. A machine for operating upon a shoe provided with an outsole having, in combination, means for supporting a shoe, an oscillatory head, a knife carried by said head, means for oscillating the head, said means tending to cause said knife to describe an arcuate path of movement, means for shifting the head relatively to its axis of oscillation duringits oscillatory movement so as to cause the knife to produce a convex curvature at rear of the bottom face of said sole which is non-circular in contour.

22. A machine for operating upon a shoe providedwith an outsole which has a tongue at the rear end thereof having, in combination. means for supporting a shoe, a pair of skiving knives, oscillatory supporting means for said knives, means for bringing the cutting edges of said knives successively into position to operate upon sa1d tongue, and means for oscillating said supporting mean's'after each knife has beenoperatively positioned to move the knife transversely across the tongue so that the opposite lateral eplges of the tongue will be successively beve ed.

23. Amachine for operating upon a shoe provided with an. outsole having, in combination, means for supporting the shoe, an

oscillatory head, a knife carried thereby,

24. A machine for operating upon a shoe provided with an outsole having, in combination, means for supporting the shoe, a head adapted to move laterally of the machine, a knife carried by said head, means for moving said head to impart a skiving movement to said knife transversely of the sole, means for moving said knife longitudinally of the sole during said skiving move ment, a gaging device for controlling said longitudinal movement and for causing said knife to turn about an axis substantially perpendicular to the sole, and means for adjusting the position of said knife relatively to said gaging device.

25. A machine for operating upon a shoe provided with an outsol-e having, in combination, means for supporting the shoe, an oscillatory head, a knife carried bysaid head, means for oscillating said head to cause said knife to cut away a portion of the sole convexly, and means for causing radial movement of said head relatively to its axis of oscillation during its oscillatory movement so as to modify the cutting stroke of the knife.

26. A machine for operating upon a shoe provided with an outsolev having, in combination, means for supporting the shoe. an oscillatory head, a knife carried by said head, means for oscillating said head to cause said knife to cut away a portion of the sole convexly, and a cam for causing radial movement of said head relatively to its axis of oscillation during its oscillatory movement so as to effect the swinging of the knife through a path not the arc of a circle.

27. A machine for operating upon a shoe provided with an outsole having, in combination, means for supporting the shoe, an oscillatory head, a knife carried by said head, means for oscillating said head to cause said knife to cut away a portion of the sole convexly, a flexible cam for causing radial movement of said head relatively to its axis of oscillation during its oscillatory movement so as to effect the swinging of the knife through a curved path, means for flexing said cam, and means for varying the flexure of said cam to modify the movement of the knife.

28. In a machine for operating upon a lasted shoe provided with an outsole, operating instrumentalities and means for supporting an inverted shoe comprising a back gage, a pair of gripper jaws for engaging the opposite sides of the counter portion of a shoe, and means for supporting the projecting marginal portions of the outsole ad- ]acent to the opposite lateral edges at the rear of the outsole.

29. In a machine for operating upon a lasted shOe provided with a short outsole,

, means for scarfing the bottom face of the outsole at the shank end thereof, a. hack. gage,

a pair of gripper jaws for engaging the opposite sides of the shoe to position it transversely with respect to the scarfing means, and a pairof supporting fingers severally mounted upon the gripper aws and adapted to enter the welt crease to support the projecting marginal ortions adjacent to the opposite lateral ec ges at the shank end of the outsole.

30. A sole-preparing machine for operating on shoes prior to the attaching of heels comprising, in combination, a device for supporting a last with a bottomed shoe thereon in inverted position, including a gage to position the shoe longitudinally and members to enter the welt crease on opposite sides of the shoe to support the rear end of the sole, a movable trimming device, including a cutter and a guide part,-and a stationary guide member having a cam surface to engage the guide part of the trimming device and con structed and arranged for adjustment to guide the cutter about the periphery of the rear end of the sole to remove waste mate rial therefrom to rovide beveled heel-seat surfaces thereon itting the corresponding surfaces of a heel 31. A sole-preparing machine for operating on shoes prior to the attaching of heels comprising, in combination, a device for supporting in inverted position a shoe with an attached sole, a trimming device movable in a curved path from side to side of the shoe, and a stationary guide member on the machine having a curved surface to guide the trimming device to remove waste material from the rear end of the sole to provide heelseat surfaces for engagement with and to support a heel.

32. A machine for operating on the sole of a shoe, to form a shoulder to seat against a superposed heel, comprising, in combination, a fixed support for a shoe, and cutting means to remove waste stock from the rear end of the sole to fit it to a cavity in a heel, said means including a device with a cutting edge extending generally perpendicular to the shoe bottom and movable transversely widthwise of the sole to form a shoulder, and said means also being arranged to bevel the sides of the sole adjacent to the shoulder.

33. A machine for operating on the sole of a shoe, to form a portion to seat against a superposed heel, comprising, in combination, a support for a shoe, and cutting means to remove waste stock from the rear end of the sole to fit it to a cavity in a heel, said means including a device with a cutting edge extending generally perpendicular to theshoe bottom and mechanism to move said device laterally of the sole with said edge held substantially erect to cut in a plane heightwise of the sole.

34. A machine for preparting a sole to re ceive a heel comprising, in combination, a

cutter hav'ing'a pair of angular cutting members, and means to give them movements of translation widthvvise of a sole to engage therewith and form a shoulder at the heel breast line and a beveled portion adjoining the shoulder and extending rearvvardly thereof on each side of the sole.

' 85. A machine for preparing a sole to re ceive a heelcomprising, in combination, a cutter having a pair of cutting members operable to cuttransversely of the Width of a sole to form a rearvvardly facing shoulder at the heel breast line, and means for effect-ing a relative movement of the cutter and a sole to cause said cutting action While maintainsubstantially the same relation longitudinally of the sole.

a 36." A'machine for preparing a sole to remeans to move the cutter transversely of the vary said path of the cutter.

sole to engage with opposite sides thereof to produce-a shouldered'breastsline cut, guiding means to predetermine the path of the cutter WidthWise of thesole, and means to 37. y A machine for preparing the heel-Seat of a soleto receive a heel comprlsmg, 1n

combination, a cutter having a pair of breast ceive a heel comprising, in combination, 'means for supporting a shoe in fixed posi- -tion, an angular knife, and means to move the knife bodily across the sole of said shoe to form a shoulder at the heel breast line and a beveled portion rearwardly ofthe shoul- 39. A heel-seat fitting machine comprismg, in combination, a cutter, and means for relatively guiding a shoe and the cutter,

including two members formed With guid mg surfaces curved 1n planes substantially at right angles to one another, to form on the. sole of the shoe a heel-breast out which,

curves in three dimensions as described.

40. .A heel seatfitting machine comprismg, in comblnation, a cutter, and means for relatively guiding a shoe and the cutter in a curved path constructed and arranged to form on the sole of the shoe a heel-breast .cut which curves in three dimensions as described. 1

41. A heel-seat fitting machine compris- .mg,1n combination, a cutter to form a shoulder on the sole of a shoe at the heel-breast line, a stationary guide member havinga surface relatively to guide a shoe and the cutter to control the shape of the heel-breast line as projected on a horizontal plane, and

4:8. A sole-fitting machine comprising, in-

a second stationay guide member having asurface relatively to uide the shoe and cutter to vary the deptli of cut to control the shape of. the shoulder. as projected on a vertical plane.

42. A machine to trim the rear end of a short sole to fit it for the superposition of a heel recessed at its breast edge comprising, in'combination, a cutter for removing Waste stock from the short heel-seat surface of the sole rearwardly of the heel-breast line, and means relatively to move a sole and the cutter Widthwise of the shoe to keep the cutter in a narrow groove extending transversely of the sole to trim both sides of the short heel-seat of the sole to fit the recess in the heel.

43. A machine to trim the rear end of a short sole to fit it for'the superposition of a heel recess-ed at its breast edge comprising,

in combination, a cutter for removing Waste stock from the short heel-seat of the sole rearwardly of the heel-breast line, and means relatively to move a sole and the cutter \vidthWiseof the sole including a guiding cam member to-cause the cutter to trim the short heel-seat of the sole to fit the recess in the heel.

44. A machine of the class described comprising, incombination, a Work-support, a

tool and a tool-carriage movable relatively thereto, and stationary members to engage the carriage, one constructed and arranged to guide'the carriage vertically and another horizontally, to move the tool in a threedimensional curve.

45. A heal-seat fitting machine comprismg, in combination, a Work-support. a sole beveling tool and tool-carriage movable relatively thereto, a flexible member to engage the carriage to guide the tool for movement in a curvedp'ath to provide a heel-seat surface, and means to bend said member to vary the curvature of the path of the tool.

l6. A sole-fitting machine comprising, in combination, a- Work-support, an oscillating head and a fitting knife carried thereby, a horizontal pivotal mounting for the head below the work-support, said head being formed With a portion overhanging the Work-support to carry the knife and including a knife slide movable radially with re spect to the pivotal mounting, and means operated by the machine for oscillating said head about its horizontal pivot mounting.

41A sole-fitting machine comprising. in combination, a Work-support, an oscillating head overhanging the work-support and a sole fitting knife carried by the overhanging part of the head and Wholly above the \vork on said support, and a horizontal pivotal mounting for the head below the Workort.

combination, a wor'lcsupport, an oscillating head behind the work support having spaced pivotal bearings arranged horizontally below the work-support, a knife and a knife carrying device on said head overhanging the work-support and arranged to allow radial motion of the knife with respect to the bearings, and a flexible guiding device and a guide follower co-opcrating to control the radial motion of the knife.

A9. A sole-fitting machine comprising, in combination, a frame, a work-support, an oscillating head mounted to swing about an axis in the frame below the work-support, a fitting knife supported on the head, a pair of sliding connections between the knife and the frame constructed and arranged to allow the knife radial motion and motion in a direction at right angles to the plane of oscillation.

50. A machine as defined by claim 49, in combination with. a guide member to control the radial motion of the knife, and a spring and means operating in opposition to the spring for controlling the motion in a direction at right angles to the plane of 0s cillation.

51. A machine of the class described comprising, in combination, a work-support, a carrier oscillating in. a. transverse vertical plane relative to the longitudinal axis of the machine about a horizontal axis below the work-support, and a tool carrying member slidingly received in the carrier for motion substantially parallel to said horizontal axis and arranged to overhang work on the support.

52. A machine of the clz as described comprising, in combination a shoe-support, a carrier oscillating in a vertical plane about a horizontal axis below the shoe-support extending longitudinally of a shoe on said support, a head on the carrier arranged to overhang work on the support, and means operated by the machine for oscillating said carrier.

53. A machine for fitting the breast end of the heel seat of an outsole having, in combination, a cutter for forming a shoulder at the breast line of the outsole, said cutter and sole being relatively movable to transfer the point of operation of the cutter across the sole widthwise thereof, and guiding means for controlling said relative movement constructed and arranged to cause said shoulder on the sole to be curved, in plan.

a l. A machine for fitting the breast end of the heel seat of an outsole having, in combination, a cutter for forming a shoulder at the breast line of the outsole, said cutter and sole being relatively movable to transfer the point of operation of the cutter across the sole widthwise thereof, and guiding means for controlling said relative movement constructed and arranged to cause said shoulder on the sole to be curved, in plan, and the transverse cut to increase in depth from the central part of the sole outwardly toward each side edge thereof.

A machine for fitting the heel end of an outsole having, in combination, a scarf ing cutter, means for supporting the outsole in position to be operated upon by said cutter, and means to actuate said cutter in a.

path extending widthwise of the outsole to produce a scarfed margin having a breast wall convexly curved relative to the width of the outsole.

56. A machine for fitting the heel end of an outsole having, in combination, means for supporting the outsole, and a single cutting means for producing a convexly curved surface on said heel end and a transversely curved shoulder at the forward edge of said surface to lit approximately the breast of a heel to be attached to the shoe 57. A machine for fitting the heel end of an out-sole having, in combination, means for supporting the outsole, a scarfing cutter having an edge to produce a shoulder at the breast line, a support for said cutter constructed to permit movement having com ponents extending both widthwise and lengthwise relative to the outsole, and means to guide said cutter in both directions of movement thereby to produce a cut of predetermined character.

58. A machine for fitting the breast end of the heel seat of an outsole having, in combination, a cutter having a cutting edge to produce a shoulder at the breast line on one face of the outsole, means for relatively moving the outsole and cutter to transfer the cutter widthwise of the outsole and simultaneously longitudinally thereof, and means for controlling the direction and degree of both movements.

59. A machine for fitting the heel end of an outsole having, in combination, means for supporting the outsole, a scarfing cutter having an edge to produce a shoulder at the. breast line, a support for said cutter constructed to permit longitudinal movement thereof relative to the outsole, and a guiding cam convexly curved about an axis substantially normal to the face of the outsole for determining the path of the cutter as it moves laterally.

60. A machine for fitting the heel end of an outsole having, in combination, means for supporting the outsole, a scarfing cutter having an edge to produce a shoulder at the breast line, a support for said cutter constructed to permit lateral movement thereof relative to the outsole, and a guiding cam curved about an axis substantially parallel to the face of the outsole for determining the path of the cutter as it moves laterally.

61. A machine for fitting the heel-seat of the sole of a shoe having, in combination, a 

